Spray gun



FIG. 1 is a side elevation view of a spray gun showing my new design,the other side being a mirror image;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a front elevational view thereof;

FIG. 5 is a rear elevational view thereof, and

FIG. 6 is a top side perspective view thereof on a reduced scale.

The ornamental design for a spray gun, as shown and described.